On 19/06/2024 9:34, Ofir Bitton wrote:
> Some systems allow a maximum number of 128 MSI-X interrupts.
> Hence we reduce the interrupt count to 128 instead of 512.
>
> Signed-off-by: Ofir Bitton <obitton@xxxxxxxxx>
> Reviewed-by: Ofir Bitton <obitton@xxxxxxxxx>
Reviewed-by: Tomer Tayar <ttayar@xxxxxxxxx>
> ---
> drivers/accel/habanalabs/gaudi2/gaudi2P.h | 8 ++++----
> drivers/accel/habanalabs/include/gaudi2/gaudi2.h | 4 ++--
> 2 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2P.h b/drivers/accel/habanalabs/gaudi2/gaudi2P.h
> index eee41387b269..05117272cac7 100644
> --- a/drivers/accel/habanalabs/gaudi2/gaudi2P.h
> +++ b/drivers/accel/habanalabs/gaudi2/gaudi2P.h
> @@ -384,7 +384,7 @@ enum gaudi2_edma_id {
> /* User interrupt count is aligned with HW CQ count.
> * We have 64 CQ's per dcore, CQ0 in dcore 0 is reserved for legacy mode
> */
> -#define GAUDI2_NUM_USER_INTERRUPTS 255
> +#define GAUDI2_NUM_USER_INTERRUPTS 64
> #define GAUDI2_NUM_RESERVED_INTERRUPTS 1
> #define GAUDI2_TOTAL_USER_INTERRUPTS (GAUDI2_NUM_USER_INTERRUPTS + GAUDI2_NUM_RESERVED_INTERRUPTS)
>
> @@ -416,11 +416,11 @@ enum gaudi2_irq_num {
> GAUDI2_IRQ_NUM_NIC_PORT_LAST = (GAUDI2_IRQ_NUM_NIC_PORT_FIRST + NIC_NUMBER_OF_PORTS - 1),
> GAUDI2_IRQ_NUM_TPC_ASSERT,
> GAUDI2_IRQ_NUM_EQ_ERROR,
> + GAUDI2_IRQ_NUM_USER_FIRST,
> + GAUDI2_IRQ_NUM_USER_LAST = (GAUDI2_IRQ_NUM_USER_FIRST + GAUDI2_NUM_USER_INTERRUPTS - 1),
> GAUDI2_IRQ_NUM_RESERVED_FIRST,
> - GAUDI2_IRQ_NUM_RESERVED_LAST = (GAUDI2_MSIX_ENTRIES - GAUDI2_TOTAL_USER_INTERRUPTS - 1),
> + GAUDI2_IRQ_NUM_RESERVED_LAST = (GAUDI2_MSIX_ENTRIES - GAUDI2_NUM_RESERVED_INTERRUPTS - 1),
> GAUDI2_IRQ_NUM_UNEXPECTED_ERROR = RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT,
> - GAUDI2_IRQ_NUM_USER_FIRST = GAUDI2_IRQ_NUM_UNEXPECTED_ERROR + 1,
> - GAUDI2_IRQ_NUM_USER_LAST = (GAUDI2_IRQ_NUM_USER_FIRST + GAUDI2_NUM_USER_INTERRUPTS - 1),
> GAUDI2_IRQ_NUM_LAST = (GAUDI2_MSIX_ENTRIES - 1)
> };
>
> diff --git a/drivers/accel/habanalabs/include/gaudi2/gaudi2.h b/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
> index 0231d6c55b4a..753d46a2836b 100644
> --- a/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
> +++ b/drivers/accel/habanalabs/include/gaudi2/gaudi2.h
> @@ -63,9 +63,9 @@
> #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_HPAGE_START 0xFFF0F80000000000ull
> #define RESERVED_VA_RANGE_FOR_ARC_ON_HOST_HPAGE_END 0xFFF0FFFFFFFFFFFFull
>
> -#define RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT 256
> +#define RESERVED_MSIX_UNEXPECTED_USER_ERROR_INTERRUPT 127
>
> -#define GAUDI2_MSIX_ENTRIES 512
> +#define GAUDI2_MSIX_ENTRIES 128
>
> #define QMAN_PQ_ENTRY_SIZE 16 /* Bytes */
>
